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Author - title
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details | Maastrichtian | USSR(WSL) | Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. | 1971 | |
details | Maastrichtian | USSR | Bondarenko,N.M. Angiosperm pollen from Upper Cretaceous deposits of Western Regions in the central part of the Soviet Arctic. | 1971 |